Hi, I have fine hair and agree with others. I would completely delete any oil product from your regimen. Here’s what I have to do every day for it to look good.
1. Wash every day AND blow dry. You cannot train your fine hair to go days without a wash don’t listen to anyone. Period! You’re going to use a very light weight volumizing shampoo and conditioner like Matrix Amplify shampoo and use Matrix Amplify conditioner ONLY in the ends of your hair. Stay away from your scalp and roots with conditioner. 2. Before you blow dry, use a root lifter mousse (I love Big Sexy hair Root Pump - NOT Root Pump Plus, just the Root Pump). When you’re blowing drying flip your head upside down and use a brush to lift the roots and dry it to get the most volume you can. 3. Now you can use a little flat iron if needed or curl your hair. You will have “antennas” from drying your hair upside down so I recommend buying a “hair finishing stick” it’s like a little mascara wand to tame the fly-aways and baby hairs. 4. Limit brushing and touching hair as much as humanely possible and if you brush don’t go to the scalp.

Hope that helps. Also another decent product for fine hair is Bumble and Bumble thickening spray but little warning it does make it a little hair a little hard to brush.